PHP Server Side Scripting Forum

I've got the following problem I'm currently looking after and investigate:

I'd like to display a link that offers a vcard to download or to be opened in the default vcard application on the system (address book). while safari does this with ease, firefox does nothing. even if I explicitly download the vcard, it saves a 0 byte file (!). FYI: the file has got more then 0 bytes.

Content-Disposition is not part of the HTTP standard [ietf.org] so it is always fun trying to get it to work cross-browser. A quick Google for "vcard format" turns up quite a few interesting reads, including this one from Mozilla that might be helpful ...